Corrosion Resistance and Durability of Superhydrophobic Surface Formed on Magnesium Alloy Coated with Nanostructured Cerium Oxide Film and Fluoroalkylsilane Molecules in Corrosive NaCl Aqueous Solution

Autor:	Takahiro Ishizaki, Michiru Sakamoto, Yoshitake Masuda
Rok vydání:	2011
Předmět:	Cerium oxide Materials science Aqueous solution Metallurgy Surfaces and Interfaces Condensed Matter Physics Electrochemistry Durability Dielectric spectroscopy Corrosion Contact angle Chemical engineering General Materials Science Magnesium alloy Spectroscopy
Zdroj:	Langmuir. 27:4780-4788
ISSN:	1520-5827 0743-7463
DOI:	10.1021/la2002783
Popis:	The corrosion resistant performance and durability of the superhydrophobic surface on magnesium alloy coated with nanostructured cerium oxide film and fluoroalkylsilane molecules in corrosive NaCl aqueous solution were investigated using electrochemical and contact angle measurements. The durability of the superhydrophobic surface in corrosive 5 wt% NaCl aqueous solution was elucidated. The corrosion resistant performance of the superhydrophobic surface formed on magnesium alloy was estimated by electrochemical impedance spectroscopy (EIS) measurements. The EIS measurements and appropriate equivalent circuit models revealed that the superhydrophobic surface considerably improved the corrosion resistant performance of magnesium alloy AZ31. American Society for Testing and Materials (ASTM) standard D 3359-02 cross cut tape test was performed to investigate the adhesion of the superhydrophobic film to the magnesium alloy surface. The corrosion formation mechanism of the superhydrophobic surface formed on the magnesium alloy was also proposed.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::65d0fc7b97c622ba88ec78e5ac134d8f https://doi.org/10.1021/la2002783 Zobrazit plný text záznamu